How do I open a KTX2 file online?
Upload a `.ktx2` or `.ktx` file to preview it in the browser, inspect RGBA channels, and export common image formats.
Online KTX2 Viewer & Decoder - Inspect and Convert KTX2 to PNG
View any .ktx2 efficiently. Upload online and operate our comprehensive KTX2 Decoder dropping your formats securely to view or retrieve inside PNG.
Related Resources
Upload KTX2 File
Features
Universal Decoder
Supports both UASTC and ETC1S compressed KTX2 files
Browser-Based Decoding
All decoding happens locally using WebAssembly - no server uploads
Real-Time Preview
Instantly view decoded textures with interactive zoom and pan controls
Channel Filtering
View individual RGBA channels or combined RGB output
PNG Export
Export decoded textures as standard PNG images
Detailed File Info
View comprehensive metadata including format, dimensions, and compression type
How to Use
1
Upload KTX2 File
Drag and drop or click to select a .ktx2 file from your computer
2
View Decoded Image
The decoder will automatically transcode and display your texture
3
Inspect Details
Use channel filters and zoom controls to examine the texture in detail
4
Export if Needed
Download the decoded texture as a PNG file if required
Frequently Asked Questions
Yes. This page is a KTX2 viewer/decoder that opens .ktx2 textures, shows decoded output, and supports PNG export.
Yes, this decoder supports both UASTC and ETC1S compression modes used in KTX2 files with Basis Universal supercompression.
No, all decoding happens locally in your browser. Your files never leave your device, ensuring complete privacy and security.
Channel filters let you view individual color channels (R, G, B, A) separately, which is useful for inspecting texture data like normal maps or packed textures.
You can export the decoded texture as PNG, which represents the transcoded output. Note that lossy compression means the result won't be pixel-perfect to the original source image.
KTX2 uses lossy compression in most cases, so some quality loss is expected. The amount depends on whether UASTC (less loss) or ETC1S (more loss) was used during encoding.
The current version displays the base mipmap level. Support for viewing all mipmap levels is planned for a future update.
Any modern browser with WebAssembly support can run the decoder, including Chrome, Firefox, Safari, and Edge.
Popular search questions
Can this KTX2 viewer convert KTX2 to PNG?
Yes. The decode preview can export PNG directly, along with JPG, WebP, AVIF, TIFF, BMP, TGA, PPM, and PGM.
Does this page support ETC1S, UASTC, and HDR KTX2 textures?
It supports common ETC1S, UASTC, and HDR KTX2 preview flows. For re-encoding or container conversion, continue to the KTX2 encode, KTX2 to DDS, or DDS to KTX2 pages.